Malicious PDF — malware analysis report

Static analysis result for SHA-256 227d815ede746d96…

MALICIOUS

PDF

41.1 KB Created: 2020-08-14 02:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 053991324a67b3d773aadd339b50e004 SHA-1: 5105dffde5a7f2cd1b85b86be08f58b908c27a83 SHA-256: 227d815ede746d96e6553fb5b5f9d25f420810e5ecc0897658d573d310136352
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF document contains a lure for a "Clash Royale hack" and embeds a link to a known malicious redirector. The redirector is likely intended to lead the user to a site that exploits vulnerabilities or hosts further malicious content. The document also exhibits characteristics of a link farm, with numerous embedded links to other PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=clash+royale+hack++ios+apk
    • http://files.labellavitaitalia.com/uploads/1/3/0/7/130739783/bosazazawo.pdf
    • http://files.hbana.org/uploads/1/3/2/7/132710795/1f427446.pdf
    • http://files.michoacanacreamery.com/uploads/1/3/1/3/131380875/palaladewimuwe_tipaxufov.pdf
    • http://files.tuyentruong.com/uploads/1/3/2/7/132740193/69af2d65dee.pdf
    • http://wazoni.richlaffertyracing.com/uploads/1/3/0/7/130739069/1588988.pdf
    • https://cdn.shopify.com/s/files/1/0431/7501/8662/files/black_dog_solo_tab.pdf
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/24951528845.pdf
    • https://cdn.shopify.com/s/files/1/0429/1067/9203/files/63914530691.pdf
    • https://cdn.shopify.com/s/files/1/0431/7636/2150/files/5961405864.pdf
    • https://cdn.shopify.com/s/files/1/0431/0014/3777/files/39506652618.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5205/files/14143372980.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/72289607916.pdf
    • https://cdn.shopify.com/s/files/1/0435/3379/5477/files/marketing_strategy_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/fitakidobizamiwirumi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/jegog.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/4261233505.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6596/files/2036587087.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/despacito_lyrics_download.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a1.bin
8add130408395bf7e26c0f45031f18f9ddadb82ce5be777d26895c5c83d208b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63A1 5092 bytes
font_01_sfnt_off000074f0.bin
506e0730f9030cc1e00546eb72694661939a336f71fa7acc1c61efba618de061		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F0 10060 bytes

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